Specifications

CT Corsair Final Report May 2, 2014
39
Figure 51: Existing Motor Mount without Motor
9 Motor Mount Design
9.1 Motor Mount Overview
The existing motor mounts are shown in Figure 50 and Figure 51. The existing motor mounts are
sufficient for securing the induction motors, but they are inadequate for securing the servo motor
and gearboxes that will eventual replace all the induction motors. The mounts are critical
components as they hold the motors in place and support the entire simulator weight while in
operation.
9.2 Parametric Model Development
The parametric model of the simulator base was used again to design the motor mounts. The
concept for the mounts was to have a single base plate that bolts onto the existing motor mounts,
a face plate that would bolt onto the gearbox face and weld into the base plate, and two side
plates to add support to the whole bracket. The motor mount was then pinned and welded in the
machine shop.
When designing the parametric model, there were critical dimensions to consider. First, the
gearbox face contains a hole pattern situated on a 4.252” diameter bolt circle, that needed to be
replicated on the new face plate. These holes also needed to have an adequate countersink in
order to avoid interference with the cam arm. Second, it was critical in the design of the new
motor mount that the cams sit in an identical position on the servo setups as they did on the
induction setup. This was verified by matching critical dimensions from the original motor setup
and translating them into the new motor mount bracket design. Finally, the parametric model
needed to be simple enough to manufacture with minimal waste, however it also needed to be
strong enough to withstand the forces of the simulator motion. The final parametric model of the
motor mount is shown in Figure 52. To understand the forces acting upon the motor mounts, a
free body analysis was performed.
Figure 50: Existing Motor Mount with Induction Motor